Half siblings but a whole lotta love.
While Kathy Hilton and Kyle Richards share different biological fathers, they were raised by the same man. Per Showbiz Cheat Sheet, Hilton and Kyle’s mother, Kathleen Dugan Avanzino Richards Catain Fenton aka Big Kathy (say that five times fast), was married at least four times. The story goes that Hilton was born during her first marriage to Larry Avanzino but it was Kenneth Richards, Big Kathy’s second husband and Kyle’s father, who went on to adopt Kathy and raise her as his own, according to Show Biz Cheat Sheet.
In 2018, Kyle took to Instagram to honor her late dad with a father’s day post. “My Dad was an incredible father,” she gushed before rattling off a long list of activities they did together. “Oh, the good old days,” she recalled. “We must have exhausted you. Sorry I didn’t become a lawyer. Happy Father’s Day Dad. I miss you,” she concluded. Meanwhile, Hilton has also spoken publicly about fond memories with her adoptive father. “We have a nine-year age difference,” she explained to Bravo Insider of her and Kyle’s age gap. “So obviously, at Christmas, I figured out Santa wasn’t real. But Kyle didn’t know that. So I was able to join in the fun with my mom and dad and help surprise her.” So sweet.